Optocouplers / Photocouplers

Optocouplers are a type of isolator that use a low-power optical signal to transmit one signal from one circuit to another independent circuit. Optocouplers are comprised of an infrared LED light source and an integrated photo detector which usually consists of a photodiode and detector circuit. This optical link or coupling provides electrical isolation between the two circuits which makes the trouble shooting and reliability of circuits more straightforward. These devices are often used to provide electrical isolation between digital signals on the same board, but they are also commonly used in medical and industrial instruments, motor control systems, and signal conditioning circuits. Optocouplers have very high input-to-output isolation voltage and low capacitance, which makes them suitable for signal transmission in high speed applications. Additionally, they manage the call back current of the circuit they are connecting, allowing them to protect against overloads.
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H11AA4M


Transistor Output Optocouplers Optocouplers
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Everlight 23
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AUD 1.8131
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CNY17-4M


Optocoupler; THT; Channels:1; Out: transistor; Uinsul:5kV; Uce:70V
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Lite-On 22
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AUD 0.2113
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CT181GR(T1)


Optocouplers SOP-4_P2.54 RoHS
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CT Micro International 22
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AUD 0.2484
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ACNT-H61L-500E


Avago Technologies High Speed Optocouplers Optocoupler (10MBd) 14.2mm
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Broadcom 22
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AUD 5.6474
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HCPL-315J-000E


Logic Output Opto-couplers 0.5A IGBT Gate Drive
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Broadcom 22
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AUD 9.9836
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LTV-0501


High Speed Optocouplers SO8 1MBD High Speed Optocoupler
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Lite-On 21
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AUD 0.5794
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PS2506L-1-A


Transistor Output Optocouplers Hi-Iso Darling 1-Ch
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CEL 21
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AUD 0.9097
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ACPL-C87A-500E


Optically Isolated Amplifiers Precision Iso-Amp
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Broadcom 21
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AUD 3.8827
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OLI500


Transistor Output Optocouplers Miniature High CMR High-speed Logic Gate Optocoupler for Hybrid Assembly
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Skyworks 21
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AUD 80.7885
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ILD223T


Transistor Output Optocouplers Photodarlington Out Dual CTR >500%
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Vishay 0
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AUD 1.1743
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